Individual addressing and state readout of trapped ions utilizing rf micromotion
Dietrich G. Leibfried · Physical Review A · 1999
A scheme for the individual addressing of ions in a trap is described that does not rely on light beams tightly focused onto only one ion. The scheme utilizes ion micromotion that may be induced in a linear trap by dc offset potentials. Thus coupling an individual ion to the globally applied light fields corresponds to a mere switching of voltages on a suitable set of compensation electrodes. The proposed scheme is especially suitable for miniaturized rf (Paul) traps with typical dimensions of about $20\ensuremath{-}40 \ensuremath{\mu}\mathrm{m}.$